The increasing efficiency and reducing the emission from the diesel engine is the main objectives of many research. Many researchers have many disadvantages like higher viscosity and lower calorific value. In order to overcome these many additives are used in biodiesel-diesel blends. One such way of improving performance and reducing the emission is adding the Nano particles as a fuel additives. Using of Nano particles in the fuel shows dramatically increase in the combustion quality and hence in the overall performance of the engine. This paper has a review on the effect of Nano particles as an additive with fuels.

Keywords : Bio Diesel; Nano-Particles; Al2O3; SEM; XRD; Sonicator.